BREAKING

The Austin, Texas police chief says a person coming into contact with a tripwire may have set off the Sunday night explosion in that city. It follows several other blasts in Austin. Two men were injured. (March 19)

Federal agents swarmed the Austin, Texas neighborhood where an explosion injured two people on Sunday night. Police aren't saying if it was caused by a package bomb like the three that detonated earlier this month elsewhere in the city. (March 19)

Robots have moved into factories, warehouses, stores and even our homes. Now they’re heading to a construction site near you. Tech startups are developing self-driving bulldozers, drones to inspect work sites and robot bricklayers. (March 19)

On this day in history: Russian cosmonaut first man to walk in space; Mahatma Gandhi is sent to prison for civic disobedience, Italy's Mussolini agrees to enter WWII; Terri Schiavo's feeding tube removed; Singer John Philips dies. (March 18)

Russia on Saturday announced it is expelling 23 British diplomats and threatened further measures in retaliation in a growing diplomatic dispute over a nerve agent attack on a former spy in Britain. (March 17)

It is a tradition on St. Patrick's Day, to celebrate in the Windy City with thousands of spectators crowding the banks of the Chicago River to be amazed at the rivers temporary hue of emerald green. (March 17)

Vice President Mike Pence visited Savannah for St. Patrick's day to take part in the biggest Southern festivities besides Mardi Gras. Pence watched the parade with his wife Karen, his mother Nancy Pence-Fritsch and Savannah Mayor Eddie DeLoach. (March 17)

Brookfield Zoo near Chicago celebrated St. Patrick's Day a little early by giving some of the animals shamrock-shaped treats. The camels, lemurs, orangutans, and gorillas all got treats made of a green biscuit and gelatin. (March 16)

Jeff Flake has a direct message for the Republicans of New Hampshire: Someone needs to stop Donald Trump. And Flake, a Republican senator from Arizona, may stand up against the Republican president in 2020 if no one else does. (March 16)

The hatch of a cargo plane carrying precious metals accidentally flew open upon take off from a Russian airport - scattering at least three tons of gold on the runway, according to Russian news reports. (March 16)